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Acrylic Vacuum Chambers

  • Ideal for degassing small parts and mixed liquids, vacuum encapsulation, and general purpose vacuum experiments
  • Provide a safe, convenient way to transport moisture- and particle-sensitive materials
  • Clear acrylic construction provides full visibility of parts
  • Sturdy construction and inlaid O-ring seal supports vacuum level down to 29.9" Hg (see ordering tables for vacuum capacity of each model)
  • Solvent welding, 304 stainless steel and chrome-plated hardware ensure a completely noncontaminating environment
  • Call to discuss custom sizes and applications, including installation of cable feed-throughs

These economical vacuum chambers provide a safe, reliable means for transporting contamination- and moisture-sensitive parts. They are also ideal for degassing operations, biological tests, material testing and other processes requiring sustained low and intermediate vacuums.

Cleanroom-Compatible Construction

Seven different sizes are available; all support vacuums to 29.9" Hg. All models are fabricated of transparent 1" (25 mm) thick acrylic, 0.52" (13 mm) acrylic on No. 5235-08. They feature chrome-plated latches to ensure a noncontaminating environment.

Terra installs a vacuum gauge and two metering valves to permit flushing of the chamber with purge gas before application of vacuum. Terra also features a full line of vacuum/nitrogen pumps. Recommended pump and accessories.

Note: Due to the inherent permeability of plastic, these chambers will not maintain a stable vacuum level over extended periods. For long-term vacuum maintenance, leave vacuum pump connected and running.

  FEATURES & BENEFITS | Vacuum Chamber
Alt Text
One-Inch Wall Thickness
One-inch-thick acrylic sustains full 29.9" Hg vacuum and ensures the chamber's integrity. Stress from vacuum can damage thinner chambers.
Gauge and Metering Valves
Included with acrylic chambers, the installed gauge lets users monitor internal pressure, while valves allow for chamber purging.
Optional Burst Valve
This adjustable valve limits internal vacuum-chamber pressure; consult the pressure gauge, and fine-tune as needed.

Multipin Feed-Through
For samples within the vacuum chamber, record leak-test results automatically using the optional 25-pin electrical connector.

Coaxial SMA Feed-Through
Install this option for interfacing electrical test equipment with materials under vacuum. Shown are double-ended, 50 Ohm connectors.

Electrode Feedthrough
Testing equipment power or data wiring is fed into the vacuum chamber interior. These optional feed-through openings are sealed around the wires.

Inlaid O-Ring
Precision-routed channel ensures uniform seal along chamber perimeter to provide an ultra-low leak rate.

Available Glass Top
0.75"-thick tempered-glass top allows optical testing and monitoring that require high clarity.
 
Why so Thick and Heavy?
Although your application may not require vacuum levels to 29.9"Hg, Terra builds its chambers to support this vacuum level due to safety concerns.

Variations in operators and operating protocol may lead to inadvertent spikes in vacuum pressure. Because these chambers are small, a few moments of vacuum operation beyond your target vacuum can subject them to substantially higher stress than you intend. Even a safety release switch is no guarantee that a chamber won't experience high vacuum pressure since these valves are not tamper-proof.

The best way to guarantee the safety of your parts and personnel is to use a chamber designed to sustain high vacuum levels. That's why Terra fabricates these chambers of 1"-thick acrylic.

Vacuum Leak Rate ChartVacuum Leak Test, 0-72 hours
Chambers lose vacuum pressure initially due to air released from acrylic walls during first three hours. If vacuum level of 29.9"Hg is restored following this initial drop in vacuum pressure, chambers hold 29.9"Hg with no detectable change in pressure over duration of test.

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Blue Prices show stock on hand. More . . .


Vacuum Chamber "A"
Acrylic Vacuum Chambers
Dimensions
W" x D" x H"
(mm)
Max Vacuum
in. of Hg
Crated Wt.
lbs.
(kg.)
Cat. # Price
Outside
(excl. hardware)
Inside
16 x 10 x 11.5
(406 x 254 x 292)
14 x 8 x 9.5
(356 x 203 x 241)
29.9 80
(36.3)
5235-00B $ 1,876
Note: Acrylic may be damaged by alcohol and other cleaning agents.

To restrict the vacuum level to less than 29.9" Hg, order the optional Vacuum Safety Switch below, which provides an adjustable vacuum release valve.


Vacuum Chamber "B"
Acrylic Vacuum Chambers
Dimensions
W" x D" x H"
(mm)
Max Vacuum
in. of Hg
Crated Wt.
lbs.
(kg.)
Cat. # Price
Outside
(excl. hardware)
Inside
13 x 13 x 7.5
(330 x 330 x 191)
11 x 11 x 5.5
(279 x 279 x 140)
29.9 70
(32)
5235-01B $ 1,519
Note: Acrylic may be damaged by alcohol and other cleaning agents.

To restrict the vacuum level to less than 29.9" Hg, order the optional Vacuum Safety Switch below, which provides an adjustable vacuum release valve.


Vacuum Chamber "C"
Acrylic Vacuum Chambers
Dimensions
W" x D" x H"
(mm)
Max Vacuum
in. of Hg
Crated Wt.
lbs.
(kg.)
Cat. # Price
Outside
(excl. hardware)
Inside
9 x 9 x 9.5
(229 x 229 x 241)
7 x 7 x 7.68
(178 x 178 x 195)
29.9 70
(32)
5235-02B $ 1,398
Note: Acrylic may be damaged by alcohol and other cleaning agents.

To restrict the vacuum level to less than 29.9" Hg, order the optional Vacuum Safety Switch below, which provides an adjustable vacuum release valve.


Vacuum Chamber "D"  
Acrylic Vacuum Chambers
Dimensions
W" x D" x H"
(mm)
Max Vacuum
in. of Hg
Crated Wt.
lbs.
(kg.)
Cat. # Price
Outside
(excl. hardware)
Inside
12 x 12 x 10.5
(305 x 305 x 267)
10 x 10 x 8.5
(254 x 254 x 216)
29.9 80
(36.3)
5235-03B $ 1,750
Note: Acrylic may be damaged by alcohol and other cleaning agents.

To restrict the vacuum level to less than 29.9" Hg, order the optional Vacuum Safety Switch below, which provides an adjustable vacuum release valve.


Vacuum Chamber "E"
Acrylic Vacuum Chambers
Dimensions
W" x D" x H"
(mm)
Max Vacuum
in. of Hg
Crated Wt.
lbs.
(kg.)
Cat. # Price
Outside
(excl. hardware)
Inside
17 x 17 x 13.5
(432 x 432 x 343)
15 x 15 x 11.5
(381 x 381 x 292)
29.9 95
(43.1)
5235-04B $ 2,392
Note: Acrylic may be damaged by alcohol and other cleaning agents.

To restrict the vacuum level to less than 29.9" Hg, order the optional Vacuum Safety Switch below, which provides an adjustable vacuum release valve.


Vacuum Chamber "F"
Acrylic Vacuum Chambers
Dimensions
W" x D" x H"
(mm)
Max
Vacuum
Crated Wt.
lbs.
(kg.)
Cat. # Price
Outside
(excl. hardware)
Inside in. of hG Torr
12 x 14.5
(305 x 368)
11 x 13.5
(279 x 343)
29.8 756.9 55
(25)
5235-08 $ 1,933

Includes gauge and valves. To restrict the vacuum level to less than 29.9" Hg, order the optional Vacuum Safety Switch below, which provides an adjustable vacuum release valve.


Vacuum Chamber "G"
Vacuum Chamber
Dimensions
W" x D" x H"
(mm)
Max
Vacuum
Crated Wt.
lbs.
(kg.)
Cat. # Price
Outside
(excl. hardware)
Inside in. of Hg Torr
32 x 32 x 6
(813 x 813 x 152)
30 x 30 x 4
(762 x 762 x 102)
27
686
225
(102)
3305-80 $ 3,296

Includes gauge and valves. To restrict the vacuum level to less than 27" Hg, order the optional Vacuum Safety Switch below, which provides an adjustable vacuum release valve.

Note: Acrylic is damaged by alcohol and other cleaning agents.

Nitrogen generator Nitrogen Generators give you a reliable point-of-use supply of up to 99%-pure nitrogen. Eliminate the drawbacks of canisters and 3rd-party suppliers! You control volume, purity and rate; all you need is a clean compressed-air feed. Terra's three sizes of maintenance-free membrane generators meet several capacity requirements are are ideal for back-filling or continuous flow into desiccators, glove boxes, vacuum chambers and incubators. 

Aluminum vs. Plastic
Terra offers chambers in both materials. Which is right for your application?

Acrylic Chambers
Economy: Lower material cost translates into a less expensive chamber.
Full visibility: You can add windows to an aluminum chamber, but nothing beats the 360-degree visibility offered by acrylic.

Aluminum Chambers
Chemical resistance: Aluminum stands up to Spor-Klenz®, alcohol and other sterilants, making it preferable in many bio/pharmaceutical applications. In addition, because many joining and sealing compounds are designed for use with metals, they may degrade acrylic and result in leaks or chamber failure.

Greater machining versatility: Aluminum allows easier addition of feed-throughs to accommodate power and data cords, electrodes and other accessories. These add-ons are more feasible on aluminum than acrylic chambers, which are more prone to cracks that develop into leaks over time. For such applications, an aluminum chamber is a wiser long-term processing solution.

More effective moisture barrier: Acrylic, because it is hygroscopic, allows moisture penetration on a molecular level. Under vacuum, these water molecules are released from the surface and may require several vacuum cycles to remove. These issues don’t occur with aluminum and other metallic moisture barriers.

Greater dimensional versatility: Due to greater strength, aluminum is more appropriate than acrylic for larger chamber sizes.



Vacuum Chamber Accessories

Metering Valve (two included on each chamber above)
Permits safe, convenient application of vacuum to the chamber. Dual valves allow purging of the chamber with nitrogen or other process gas before vacuum is applied. Price includes installation.
Cat. # Price
5235-09 $ 168

Vacuum Gauge (one included on each chamber above)
Senses and indicates vacuums on 0-30” Hg scale. Price includes installation.
Cat. # Price
5235-10 $ 206

Vacuum Safety Relief Valve
Bleeds vacuum exceeding an adjustable pressure level to prevent damage to vacuum chamber. For full vacuum chambers above, it can be used to restrict the vacuum level to protect samples.
Cat. # Price
5235-11 $ 90

vacuum chanber with glass top
Shown on Model No. 5235-02B
Vacuum Chambers with Glass Tops
Includes 0.75"-thick tempered glass top, with valves and gauges moved to a side panel, to allow optical testing and monitoring that require the clarity of glass. To order, specify the part number below along with that of any rectangular acrylic chamber above. Price is 20% of the cost of the chamber to which the top is applied.
Cat. # Price
5235-29 Call TUI

cord pull through
Description Cat. # Price
Electrode Feedthrough 5235-15 call TUI
Feed-Throughs
  • Power cords
  • Sensor cables
  • Data lines
  • Thermocouple connectors

Terra installs feed-throughs for a wide range of applications such as component/device leak testing. Just provide us your choice of feed-through fitting and a sample of the cord or cable, and specify the desired location(s). All chambers equipped with cord/cable feed-throughs are leak tested to ensure that chamber performance remains within your specified vacuum range.

cord pull through   cord pull through
Description Cat. # Price
2x25-pin Subminiature-D Feedthrough 5235-46 $ 1,460
 
Description Cat. # Price
2-pin Coaxial Double-Ended Feedthrough 5235-47 $ 1,560
Call Terra for a quote on a feed-through for your application!

Recommended Pump and Accessories — See Sample Pump Configuration

Pump

 

Accessories


 
Pump Type Ilmvac # Terra Part # Price
Standard Duty Dry 2562B-01 7906-50 $ 936
Click for full specifications
  Vacuum Control Module: 110VAC, 50/60Hz
Includes LED vacuum display and set point controller, on/off switches for controlling pump and vacuum solenoid operation. Click here for full specifications.
Vacuum Control Module Cat. # Price
120VAC, 60Hz 1681-75 $ 2,573
220VAC, 50/60Hz 1681-75-220 $ 2,573
Vacuum Pump Connection Kits
Tubing in. (mm) Cat # Price
1/4 (6) 5400-24 $ 1,600
Click here for full specifications

File Type File Name Publication Date
Manual (PDF) Vacuum Chambers: Doc. # 1800-60
09/20/2017
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